Cathode ray tube

Numéro d’image : 11897165
Cathode ray tube
Cathode ray tube. Image 2 of 2. Demonstration showing how a beam of electrons can be deflected by a magnetic field,as seen in television cathode ray tube (CRT) displays. Here,electricity from the wires (left) is heating a cathode to produce a beam (blue) of electrons (also called a cathode ray),which is seen by the ionisation of the gas around it. Helmholtz coils (round) surround the glass tube and are providing the magnetic field to deflect the electron beam. This deflection of an electron beam is used to move the beam to create the images seen on a television CRT screen. See image T540/148 for this electron beam being used to produce green fluorescent light from the phosphor-coated area at right
Licence : Droits gérés
Crédit: Science Photo Library / Andrew Lambert Photography
Taille de l’image : 4843 px × 3625 px
Model Release : Non requis
Property Release : Non requis
Restrictions : -

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